Filter.



PATENTED APR. 21, 1908. .I. POLZIN.

FILTER APPLICATION PILED FEB. 11 1907.

wuwtoz Jos e P ?012 in T 0 all whom it may concerns Be it known that I,J OSEPH PoLZIN, a citizen of the United States, residing at Davenport,in the county of Scott and- State of Iowa, have invented certain new anduseful Improvements in Filters; andI do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention has relation to improvements in filters, and it consists inthe construction and arrangement of parts, as will be hereinafterdescribed and particularly pointed out in the claim.

In the accompanying drawings which illustrate the invention,-Figure 1 isa vertical longitudinal sectional view of a filter embodying myinvention; and Figs. 2 and 3 are similar views enlarged, of the lock-nutand inner cone, respectively.

Referring more particularly to the drawings, which are 'for illustrativepurposes only and are therefore not drawn to scale, 1 indicates the bodyof my filter which is divided into upper and lower chambers 2 and 3 bymeans of a partition 4 preferably arranged substantially midway theheight of the filter.

The up er chamber is provided with suitable filtering material 5, whichis retained in position by means of two perforated plates 6 and 7,having central openings therein, the plate 6 being arranged at asuitable distance above the im erforate plate 4 to permit of the passageoi the liquor to be filtered from the inlet 8 to all parts of the plate6 and 'filtering material 5, and the upper plate 7 is adjustably held ontop of the filtering material by a lock-nut 9 that is adapted to bemoved up and down upon the inlet pipe 8.

The lower end of the inlet pipe is coneshaped and is provided Withsuitable openings 10, through which the liquor escapes and at its upperend it is provided with a funnel 11. Removably -seated within the funnel11 is a removable cone 12, which is provided with a perforated plate 13that is adapted to catch and retain the coarser material that is withinthe material to be filtered. A suitable cover 14 is provided for theupper end of the filter, through which access is gained to the interierof the filter and which is centrally provided with an opening, as shownat 15 for the passage oi" the inlet pipe 8.

UNITED STATES PATENT OFFICE.

JOSEPH POLZIN, OF DAVENPORT, IOWA.

FILTER.

Patented April 21, 1908.

Extending 'from the upper end of the filter, which is preferablyenlarged or made flaring, as shown at 16, is a pipe or tube 17, whichcommunicates with the lower chamber 2 at a short distance below thediaphragm 4. This tube preferably extends down upon' the outside of thefilter. A gage 18, preferably 'formed 'l'ron a glass tube in theordinary manner, is secured upon the outside of the lower chamber 'forthe purpose of indicating the height ot' the filtered material withinsaid chamber. Afaucet 10 is provided at the bottom of the chamber 2 fordrawing o'l' its con,- tents and a similar faucet 20 is preferablyprovided directly above the partition 4 for drawing oli' the sediment orother heavier matter deposited at that point.

In using my filter as above described, after the lower perforated 'plate6 has been placed in position the chamber 3 is then filled with suitablematerial for filtering the particular liquid for which it is intendedthat the filter shall be used. hen used for water such substances areused as experience has (letermined is most efiicient for the particularinpurities with which the water is charged, but for wine, liquor,Vinegar, gasolene and certain kinds of water, the chamber 3 is filledwith sand, but for machine and engine oils it is preferably 'filled withbatting or wool. The perforated plate or follower 7 is then screwed downwith the lower end of the inlet pipe resting upon or adjacent to thepartition 4. The cone 12 is then placed within the funnel 11 and thematerial to be filtered is poured into the upper end of the cone 12 fromwhence it passes down through the perforated plate 13, inlet pipe S andout into the space between the partition 4 and plate 6. The heavierportions of the sediment are deposited within this space from which theymay be withdrawn through the faucet 20 while the remaining portion ofthe material passes up through the body of 'filtering inaterial into thespace at the top of the filter above the plate 7. From there it passesdown through the tube 17, as indicated by arrows, into the lower chamberor receiver 2, 'from whence it is withdrawn as desired through thefaucet 19, the amount of' material within the chamber always beingindicated by the sight tube 18.

It is evident that changes and modifications may be made in the form andconstruction of the different parts of the invention and I reserve theright to make all such l having a central opening therein, a funnelchanges and modifications as Will come within the scope of my invention.I

Having thus described my inventon, What I claim as new and desire tosecure by Letters-Patent, is

A filter comprising a receptacle With a fiaring upper end, a solidpartition arranged approxmately midway of the receptacle to provide alower chamber, a pipe eXtending from the upper end of the receptacle andhaving communication With the lower chamber, a perforated plate having acentral opening therein arranged above the partition to provide asediment chamber therebetween, a perforated plate having a centralopening therein arranged near the top of the receptacle to permit offiltering material being arranged between it and the first mcntionedperforated plate, a cover for the receptacle having a screw threadedinlet pipe, said pipe being inserted through the opening of the coverand through the openings of the perforated plates and having aperforated coneshaped lower end which serves to contact with thepartition, a thumb nut mounted on the threads of the pipe which servesto hold the perforated plate in an adjustable position within thereceptacle, a faucet for the sediment chamber, and a faucet for thelower chamber, substantially as specified.

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witnesses.

FRANK BARRACLUGH, GEORGE J. PERRY.

